Spout for ore-smelting furnaces.



C. C. BENTON.

SPOUT POR ORE SMBLTING PURNACES.

APPLICATION FILED SEPT. 1s, 1912.

1,086,884. Patented Feb.1o, 1914.

CALLIE COOK BENTON, 0F GARY, INDIANA.

SPOUT FOR ORE-SMELTING FURNACES.

Losses/e.

Specification of Letters Patent.

Application filed September 1G, 1912.

Patented Feb. 1Q, 1914. semi No. 720,709.

To all 107mm t may concern Be it known that I, CALLIE Coon BENTON, a citizen of the United States, and residing in Gary, in the county of lLake, State of lndiana, have invented new and useful lmprovements in Spouts for Gre- Smelting Furnaces, of which the following is a specication.

My invention relates to improvements in spouts for ore smelting furnaces and has for its object the production of a spout of this character which will be of durable and economical construct-ion and which will be elticient in use.

Other objects will appear hereinafter.

The invention consists `in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawing forming a part of this specification, and in which Figure 1 is a side elevation of the lower portion of an ore smelting furnace equipped with a spout embodying my invention, Fig. 2 is an enlarged top plan view of said spout, Fig. 3 is an enlarged vertical transverse section taken on substantially line ca-as of Fig, 1, and Fig. Ll is a horizontal section taken on substantially line ykg/ of Fig. 3.

The preferred form of construction as illustrated in the drawing comprises a conventional ore smelting furnace or cupola 1 provided at its lower end with a spout 2. Said spout is provided with the usual gate 3 which traverses the upper portion of the trough or channel of said spout serving to prevent the slag or dross of the molten metal flowing through said spout from being discharged 'from the outer end thereof, said gate 3 arresting the slag or dross which gathers upon the upper surface of the molten metal so that said slag or dross will flow through the laterally opening shallow cut or recess l which is provided for this purpose. The upper surface of the outer end wall 5 of the spout is also positioned in a plane below the upper edges of the sides of the lateral walls of said spout so as to permit of the escape of any slag or dross which may gather upon the molten metal after the same has passed the gate 3.

Located between the gate 3 and wall 5 is the main discharge opening 6 which is of V-:hape as shown. Said opening is controlled by a gate consisting of two vertically movable sections 7 and 3 the lateral edges of which engage channels 9 and 10 respectively provided in the corresponding edges of said opening. rlhe gate section 7 as will be observed, controls only the upper portion of said opening, the lower sect-ion 8 con trolling' the lower portion of said opening, said sections being so formed as to snugly engage said channels 9 and 10 in order to form a liquid tight connection.

In use, preparatory to the admission of the molten metal to the spout 2, the inner surface of the gate sections 7 and 8 are covered with a layer 11 of sand or other suitable material to protect the same. When it is desired to draw the metal from said spout the door section 8 is elevated, and a hole made through the layer of sand or wall 11 permitting the molten metal to pass through opening G under the lower edge of section 8. Door section 3 may be completely removed and section 7 raised also when so desired to increase the flow of metal from the spout. In order to support the protecting layer which registers wit-h the section 7 a flange 12 is provided at the lower edge of the. latter as clearly shown in Fig. 3. With this arrangement the protecting sand layer or lining of the gate section 7 will be entirely independent of that of the section 8 and so that when the section 8 and consequently the protecting lining thereof is removed, the protecting lining of section 7 will not be affected. The gate sections 7 and 8 as well as the gate 3 are moved vertically through the medium of cables or other flexible elements 13, 14 and 15 respectively which pass upwardly over channel guide rollers mounted in a supporting arm 16 secured to and projecting from the furnace. Said cables are separate and independent of each other so that the gates with which the same are connected may be independently adjusted.

l/Vith the construction set forth it will be possible to control the flow of the molten metal from the spout so as to prevent a flow therefrom which will be too great to handle, such as would be the case if the entire discharge opening 6 were uncovered. By providing a two-part gate, the lower part or section thereof may be removed without fear of displacement of the upper section and hence without fear of the entire discharge opening being uncovered. rihis arrangement is of advantage over a gate constructed of one piece since in the latter case in order to permit of the flow through the discharge opening controlled thereby, it is necessary to elevate the entire gate, and this elevation of the entire gate not infrequently results in the displacement of the gate and hence in the entire uncovering of the discharge opening which permits of a flow of molten metal which it is impossible to handle resulting often in injury and great damage.

Thilo l have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification Without departing from the spirit of the invention. I, therefore, do not Wish to be limited to the precise details of construct-ion set forth, but

desire to avail myself of suoli variations and modifications as come Within the scope of the appended claims.

Having described my invention what I claim as new and desire to secure by Letters Patentis:

l. The combination With an ore smelting furnace, of an outlet spout leading therefrom; a discharge opening in one side of said spout; a gat-e controlling said discharge opening, said gate consisting of two independently adjustable vertically movable sections, one of said sections controlling the' lower portion of said opening, and the other of said sections controlling the upper portion thereof; and means on said upper section for supporting a protecting sand layerl upon the inner surface thereof when said lower section is removed, substantially as described.

2. The combination With an ore smelting furnace, of an outlet spout leading there from; a discharge opening in one side of said spout and having parallel channels inV its sides; a gate consisting of a lower section mounted in corresponding channels of said opening and an upper section mounted in the other corresponding channels of said opening, said lower section being capable of being moved past said upper section, a lining on the inner side of each of said sec tions; and a. flange on said upper section supporting the lining of such section, subf stantially as described.

OALLIE COOK BENTON.

Witnesses CHARLES STEEL, MARTIN M. RErss.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

